KR102604377B1 - Audio system with beam forming speakers and eyewear with audio system - Google Patents

Abstract

The present invention relates to an audio system (2) for placement in an area outside the ear, having a carrier member (4) for attachment to the head of a user, the ear of the target ear when the carrier member (4) is positioned as desired. Comprising at least one hollow space (26, 27, 28) with a basic opening (11, 12, 13) facing in the direction of the opening (22), at least one disposed within said hollow space (26, 27, 28) of speakers (5, 6, 7), wherein the cavity (14, 15, 16) of the hollow space is at least partially formed by a first hollow space region (29), and transmits a first sound wave through the hollow space ( 35) can be emitted through the basic openings (11, 12, 13) in the direction of the ears spaced apart from the openings.
According to the invention, the hollow space (26, 27, 28) comprises auxiliary openings (17, 18, 19) arranged in the first hollow space region (29), which openings allow the carrier member (4) to When placed as intended, a second sound wave (36) can be emitted by the loudspeaker (5, 6, 7) through the auxiliary openings (17, 18, 19) towards the peripheral area and away from the ear. The second sound wave is offset in phase with the first sound wave 35 so that the sound waves emitted by the audio system 2 into the surrounding area are reduced.

Description

Audio system with beam forming speakers and eyewear with audio system

The present invention relates to an audio system for placement in an area outside the ear, having a carrier member for attachment to a user's head, the carrier member having a primary opening oriented in the direction of the ear opening of the target ear when the carrier member is positioned as desired. comprising at least one hollow space, having at least one speaker disposed within the hollow space, the cavity of the hollow space being at least partially defined by a first hollow space region of the carrier member, and a first hollow space through the hollow space. 1 relates to an audio system that allows sound waves to be emitted through the primary aperture in the direction of an ear space spaced from the aperture.

The invention also relates to eyewear, especially data glasses, for inputting and outputting visual and/or auditory information by means of an audio system.

An eyewear including a speaker and an acoustic sound guide element is disclosed in U.S. Patent No. 2014/0270316 A1, and the sound generated by the speaker through the eyewear is transmitted to the user so that the user can perceive the audio information. It can be guided into the ear opening. The sound guide element extends from the earpiece of the eyewear to the user's ear opening. The disadvantage in this case is that the direct placement of the sound guide element in the ear opening attenuates ambient sounds. Additionally, users find the audio system distracting if placed directly at or within the ear opening.

Therefore, the object of the present invention is to enable audio information to be transmitted to the user without being perceptible by people present in the surrounding area, to the area outside the ear so that relevant ambient sounds are not attenuated and fit is improved. It provides an audio system for deployment.

The above object is achieved by an audio system for placement in the area outside the ear and an eyewear that inputs and outputs visual and/or auditory information and has the features of the independent claims.

The constituent means of an audio system having a beam forming speaker of the present invention proposed to solve the above problems include an audio system 2 for placement outside the ear, a carrier member for attachment to the user's head ( 4), at least one hollow space (26, 27, 28), and has at least one speaker (5, 6, 7) disposed in the hollow space (26, 27, 28), and the cavity (14, 15, 16) of the hollow space is the first hollow space. The basic openings (11, 12, 13) are formed at least in part by a region (29), and the hollow space allows the first sound wave (35) to be disposed in the direction of the ear at a distance from the openings (11, 12, 13). and the hollow space (26, 27, 28) includes auxiliary openings (17, 18, 19) disposed in the first hollow space region (29), the auxiliary openings being disposed in the carrier. When the member 4 is positioned as desired, the second sound wave 36 can be emitted by the loudspeaker 5, 6, 7 through the auxiliary openings 17, 18, 19 towards the surrounding area and into the ear. Directed in a direction away from the second sound wave 36, the second sound wave 36 is offset in phase with the first sound wave 35 so that the volume of the sound wave emitted by the audio system 2 to the surrounding area is reduced. It is characterized by

Here, the basic openings 11, 12, 13 and the auxiliary openings 17, 18, 19 are arranged on two different sides 20, 21 of the carrier member 4 facing away from each other, The openings are characterized by being inclined at an angle of 90° or more and 180° or less.

In addition, the audio system 2 includes a control unit 25 for sound beam forming, the control unit 25 being electrically connected to the speakers 5, 6, 7 and the carrier member 4. It is characterized by being integrated into.

Here, the control unit 25 controls the first sound wave 35 emitted by the at least one speaker 5, 6, 7 through the basic opening 11, 12, 13 to the ear opening 22. ), and is characterized in that the second sound wave 36 is implemented to have a phase offset of substantially 180° with respect to the first sound wave 35.

In addition, the loudspeakers (5, 6, 7) have sound guide channels (8, 9, 10) that guide the basic openings (11, 12, 13) and are at least partially realized by a second hollow space region (30). It is characterized by including.

In addition, the carrier member 4 includes two housing parts 31 and 32 that are coupled to each other and the hollow spaces 26, 27 and 28 are formed between them, and the speakers 5, 6 and 7 are It is characterized in that it is securely held in the mounting recess 33 implemented in one of the two housing parts.

Here, the two hollow space regions (29, 30) are separated from each other by the speakers (5, 6, 7) disposed between the regions (29, 30) and sealed from each other by a sealing member (34). It is characterized by

Here, the sealing member 34 is implemented as a frame and is pressed between the speaker, in particular an end surface of the speaker facing away from the mounting recess 33, and one of the two housing parts 31, 32. It is characterized by

In addition, the speakers 5, 6, 7 are MEMS speakers 5, 6, 7 implemented as low-pitched or high-pitched speakers and including a membrane displaceable along the stroke axis 37, and the basic opening ( 11 , 12 , 13 ) and/or the auxiliary openings 17 , 18 , 19 are characterized in that they are aligned with the stroke axis, in particular at an angle of substantially 90°.

Furthermore, the audio system (2) comprises at least two high-pitched loudspeakers (5, 6), the main openings (11, 12) of the two high-pitched loudspeakers being spaced apart from each other, in particular between 1 and 5 cm. They are arranged at a distance of 2 cm, and the control unit 25 is characterized in that the two high-pitched speakers 5, 6 can be operated at a phase offset determined as a function of the separation distance for sound beam formation.

In addition, the basic openings 11, 12, 13 of the speakers 5, 6, 7 are positioned so that when the carrier member 4 is positioned as desired, the openings 11, 12, 13 are aligned with the ear opening 22. It is characterized in that it is disposed on the curved outer surface 23 of the carrier member 4 so as to be spaced apart from the carrier member 4 at substantially equal intervals.

Furthermore, the audio system (2) comprises a microphone and the control unit (25) is implemented so that background noise picked up by the microphone can be suppressed by correspondingly actuating the loudspeakers (5, 6, 7). It is characterized by

Furthermore, the carrier element 4 is integrated into or implemented as an eyewear earpiece 3 and provides basic openings 11, 12, 13 of the speakers 5, 6, 7. ) is disposed in the area of the lower surface 20 of the eyewear earpiece 3 and the auxiliary openings 17, 18, 19 of the speakers 5, 6, 7 are positioned at the eyewear earpiece 3. ) is characterized in that it is disposed in the area of the upper surface 21.

Meanwhile, the constituent means of the eyewear having an audio system of the present invention are eyewear 1 that inputs and outputs visual and/or auditory information and has an audio system 2, wherein the audio system 2 has the above technical features. It is characterized by being implemented according to at least one of the following.

According to the present invention, which has the problems and solutions described above, audio information can be transmitted to the user in a state that cannot be perceived by people present in the surrounding area, relevant surrounding sounds are not attenuated, and comfort is improved. This effect can be achieved by providing an audio system for placement in the outer area of the ear.

1 is a side view of an eyewear with a schematically shown audio system integrated into an eyewear earpiece.
Figure 2 is a perspective back view of an eyewear earpiece having a plurality of primary openings disposed on a lower surface and a plurality of auxiliary openings disposed on an upper surface.
Figure 3 is a longitudinal cross-section through an eyewear earpiece.
Figure 4 is a cross-sectional view through the eyewear earpiece in the speaker area of the audio system.

Hereinafter, with reference to the attached drawings, preferred embodiments of the present invention's audio system and eyewear having the audio system having the above problems, solutions, and effects will be described in detail.

In this process, the size or shape of the components shown in the drawings may be exaggerated for clarity and convenience of explanation. Additionally, terms specifically defined in consideration of the configuration and operation of the present invention may vary depending on the intention or custom of the user or operator.

To ensure that the relationships between the various components described below are clear, related terms such as top, bottom, above, below, upper, lower, left, right, vertical, and horizontal are used to indicate the position of the object to which each drawing refers. It is used.

It goes without saying that the above terms may change if the positions of elements or components shown in the drawings change. Therefore, if the direction of an element or component shown in the above drawings is reversed, features specified at the top may be specified at the bottom in the drawings described below. Ultimately, the related terminology used merely serves to facilitate description of the relative relationships between each element or component described below.

The present invention relates to an audio system for placement in the area outside the ear.

When the audio system is positioned as intended, the system is positioned away from the ear, particularly the ear opening.

The audio system includes a carrier member for attachment to a user's head and includes at least one hollow space with a primary opening. The basic opening is disposed on the carrier member such that when the carrier member is positioned as targeted, the opening is oriented in the direction of the target ear opening. Accordingly, the primary opening is preferably spaced apart from the target ear and is preferably on the side of the ear and/or aligned in the direction of the ear opening.

The audio system further includes at least one speaker disposed in the hollow space. The speaker is preferably a MEMS speaker. The cavity of the speaker is at least partially formed by a first hollow space region of the hollow space. The first sound wave may be emitted by the speaker through the basic opening in the direction of an ear spaced apart from the opening.

In order to enable acoustic beamforming or "beam forming" where the audio signal emitted into the surrounding area is reduced to a minimum (or reduced) and substantially focused over the user's ear openings, the hollow space is positioned so that the carrier member is positioned as desired. and an auxiliary opening disposed in the first hollow space region such that when deployed, the auxiliary opening faces in a direction away from the ear toward the peripheral region.

Accordingly, a second sound wave whose phase is offset from the first sound wave may be emitted by the speaker through the auxiliary opening. The phase offset is implemented so that the volume of sound waves emitted by the audio system to the surrounding area can be reduced. Accordingly, auditory information can advantageously be transmitted to the user by the audio system even if said information cannot be perceived by people nearby. The non-contact implementation of audio systems away from the ears and the associated high level of wearing comfort can achieve a very high level of customer acceptance. Accordingly, the user does not need to wear a distracting element in the immediate vicinity of the ear opening because the audio signal is transmitted intensively from the area away from the ear to the ear opening.

The primary opening and the auxiliary opening are advantageously arranged on two different sides of the carrier member facing away from each other. One of the two sides is oriented towards the direction of the target ear opening, and the other side is oriented away from the ear opening and towards the surrounding area.

In order to allow sound waves partially emitted to the surrounding area through the basic opening to be removed through the auxiliary opening, the basic opening and the auxiliary opening are oriented in an inclined direction at an angle of 90° or more and 180° or less to each other. It is advantageous. Accordingly, it is ensured that the auxiliary opening is spaced far enough away from the ear opening that only sound waves radiating to the surrounding area are eliminated.

It is preferable that the opening surface area of the auxiliary opening is slightly smaller or the same size as the opening surface area of the basic opening.

It is further preferred that the audio system comprises a control unit electrically connected to the loudspeaker for acoustic beam forming. The control unit is preferably integrated into the carrier member. Accordingly, it can be ensured that the speaker is operated so that relevant audio information is only available to the user and people in the surrounding area cannot hear anything.

In a preferred embodiment of the invention, the control unit is implemented so that the first sound wave emitted by the at least one loudspeaker through the basic opening can be focused on the area of the ear opening. Accordingly, sound waves unintentionally emitted to the surrounding area can be reduced.

Additionally or alternatively, it is further advantageous for the control unit to be implemented such that the second sound wave comprises a phase offset of substantially 180°. The first sound wave inadvertently emitted to the surrounding area through the primary opening may be eliminated by the second sound wave offset by 180° through the auxiliary opening. Therefore, people in the surrounding area cannot recognize audio information related to the user.

In order to have a greater degree of freedom in the placement of the loudspeaker, it is advantageous for the loudspeaker to include a sound guide channel that guides it to the basic aperture. The channel is preferably formed at least in part by a second hollow space region of the hollow space. Accordingly, the first sound wave generated by the speaker is guided to the basic aperture through the sound guide channel.

In order to simplify the manufacture and subsequent replacement of the audio system, it is advantageous for the carrier element to comprise two housing parts joined together to create a hollow space between them. The housing parts may be detachably or permanently coupled to each other. The first and/or second hollow space regions are preferably partially implemented in the first and second parts of the housing. Accordingly, the housing parts in this case include a recess that is concavely curved inward and forms the hollow space when assembled.

For easier assembly of the audio system, it is advantageous for the speaker to be placed and/or reinforced between the two parts of the housing. For this purpose, at least one of the two parts of the housing preferably includes a mounting recess through which the loudspeaker is securely held. In this case, the loudspeaker contacts the mounting recess, in particular at the side and/or edge area of one of the two ends.

In a preferred embodiment of the invention, the two hollow space regions are separated from each other by the speaker and/or by a sealing element arranged between the regions. Accordingly, it can be avoided that the first sound wave emitted into the first hollow space region can pass through the second hollow space region. In the same way, the sealing member also prevents the second sound wave emitted by the speaker into the second hollow space region from penetrating into the first hollow space region. As a result, very high audio quality can be guaranteed.

In order to ensure a complete seal, it is preferred that the sealing element is implemented as a frame and/or is pressed between one of the two housing parts and an end face of the loudspeaker, in particular the loudspeaker facing away from the mounting recess. .

For the compact design of the audio system, it is preferable that the speaker is a MEMS speaker. The speaker is preferably a piezoelectric MEMS speaker. The speaker includes a membrane and a piezoelectric actuator layer or actuator. The membrane of the MEMS speaker may be spaced apart from the actuator or the actuator layer and/or may be coupled by a stroke structure disposed between them.

The loudspeaker preferably comprises a membrane displaceable along a stroke axis, and the primary and/or auxiliary openings are preferably aligned at an angle substantially 90° relative to the stroke axis. As a result, a very compact design of the audio system can be implemented.

It is preferred that the audio system includes at least one bass speaker and/or at least two treble speakers. For beam shaping, it is preferred that the basic openings of the two high-pitched speakers are spaced apart from each other, in particular by between 1 cm and 5 cm, particularly preferably by 2 cm. From this point of view, it is further advantageous if the control unit is implemented for acoustic beam forming so that the two treble loudspeakers can be operated at a distance-dependent phase offset. Accordingly, the first sound waves emitted to the surrounding area may be concentrated in the ear opening, and the sound waves emitted to the surrounding area may be reduced. Preferably, the high-pitched speakers do not have auxiliary openings.

It is more preferable if the low-pitched speaker is placed between the two high-pitched speakers. Accordingly, the audio system can be implemented in a very space-saving manner. Additionally, the distance between the two high-pitched speakers can be increased, which ultimately has a beneficial effect on beam forming. However, alternatively, it is also advantageous if the bass speakers are placed in the edge area of the speaker array, since their cavities can be enlarged in a direction away from adjacent speakers.

To enable optimal placement of the speakers of the audio system in an area that follows the contour of the ear, the primary openings of the speakers are preferably arranged on a curved outer surface of the carrier element. Accordingly, it can advantageously be ensured that when the carrier member is positioned as desired, all basic openings are spaced at substantially the same distance from the ear opening. Accordingly, the quality of acoustic beam forming can be advantageously optimized.

wherein the audio system comprises a microphone, in particular a MEMS microphone, and/or the control unit is configured such that background noise picked up by the microphone can be suppressed by correspondingly activating at least one loudspeaker. desirable.

It is preferable that the carrier member is integrated into the eyewear earpiece. Alternatively, the carrier element could also be implemented as an eyewear earpiece. In this case, the primary opening of the speaker is preferably arranged in the area of the lower surface of the eyewear earpiece, and the secondary opening of the speaker is located on the side and/or upper surface of the eyewear earpiece. placed in the area. Accordingly, the primary opening arranged in the lower surface can be aligned with the ear opening, especially if the lower surface has a curved design, while the auxiliary opening of the speaker is simultaneously oriented away from the ear opening and towards the surrounding area. It is oriented toward.

Eyewear, especially data glasses, for input and output of visual and/or auditory information are additionally proposed.

The eyewear includes an audio system. The audio system is implemented according to the above description, and the indicated features can be expressed individually or in any combination. Accordingly, eyewear with the audio system characterized by a very high wearing comfort can be produced. This is because no components of the audio system need to be placed in the immediate vicinity of the ear opening or even in the ear opening itself. Instead, the audio system can be worn in a non-contact manner. That is, it can be placed completely spaced apart from the ear opening. Additionally, audio information can be made available exclusively to the user by the eyewear, without even people in the surrounding area being able to hear it.

Other advantages of the invention are illustrated in the examples below.

Figure 1 shows eyewear (1) with an integrated audio system (2).

The eyewear 1 is implemented as data glasses, through which visual information, especially AR information (augmented reality), can be displayed to the user. The eyewear includes a memory unit, not shown here, and an interface that allows the eyewear 1 to communicate with other systems, especially wirelessly.

The eyewear 1 can also deliver audio information to the user via the audio system 2. According to this embodiment, the audio system (2) is integrated into the eyewear earpiece (3) of the eyewear (1). However, as an alternative, it is also conceivable for at least part of the audio system 2 to be detachably mounted on the eyewear 1 . The audio system 2 includes a carrier member 4 into which the different components of the audio system 2 are integrated. Here, the eyewear earpiece 3 forms the carrier member 4. However, alternatively, the carrier member 4 may be a separate component that is detachably mounted on the eyewear earpiece 3.

The audio system 2 includes a plurality of speakers 5, 6, 7. The speakers are implemented here as MEMS speakers. The speakers (5, 6, 7) each have one sound guide channel (8, 9) with one basic opening (11, 12, 13) at the end facing away from the speaker (5, 6, 7). , 10). Each of the speakers 5, 6, and 7 further includes cavities 14, 15, and 16. The cavities 14, 15, 16 are respectively arranged on the side of the corresponding loudspeaker 5, 6, 7 facing away from the basic opening 11, 12, 13. Each of the cavities 14, 15, 16 of the speakers 5, 6, 7 includes one auxiliary opening 17, 18, 19. The auxiliary openings 17, 18, 19 are arranged on the side of the carrier member 4 facing away from the respective associated basic openings 11, 12, 13.

As can be seen by Figures 1 and 2, when the carrier member 4 and the eyewear earpiece 3 are positioned as desired, the basic openings 11, 12, 13 are positioned in the carrier member. It is disposed on the lower surface 20 of (4). In contrast, the auxiliary openings 17 , 18 , 19 are located on opposite upper surfaces 21 of the carrier member 4 . Accordingly, the primary openings 11 , 12 , 13 and the corresponding auxiliary openings 17 , 18 , 19 are positioned towards each other and/or are arranged on different sides of the carrier element 4 do.

According to Figure 1, the basic openings 11, 12, 13 are positioned on the lower surface 20 such that when the eyewear 1 is placed as intended, the openings are aligned towards the user's ear opening 22. are placed on and/or aligned. The basic openings 11 , 12 , 13 have substantially the same distance from the ear opening 22 . For this purpose, the lower surface 20 of the carrier element 4 has a corresponding curved outer surface 23 . The outer surface 23 is bent concavely for this purpose, with the result that the height of the eyewear earpiece 3 increases in the direction towards the lens 24 . Accordingly, at least the frontmost speaker 7 of the speaker array is aligned backwards in the direction towards the ear opening 22.

The audio system 2 according to FIG. 1 further comprises a control unit 25 . The control unit 25 is electrically connected to the speakers 5, 6, 7 and is integrated into the carrier member 4 or the eyewear earpiece 3 according to the present embodiment. The control unit 25 is also implemented so that beamforming of the audio signal can be performed by the control unit. In this case, the sound waves emitted by the speakers 5, 6, 7 are concentrated in the user's ear openings 22 and/or the sound waves emitted to the surrounding area are reduced. Therefore, it is preferably ensured that the audio information emitted by the audio system 2 becomes available exclusively to the wearer of the eyewear 1 and cannot be perceived by other people present in the immediate vicinity. It can be.

As can be seen from FIGS. 1 and 3, the audio system 2 according to this embodiment includes three speakers 5, 6, and 7. The first speaker 5 and the second speaker 6 are here implemented as high-pitched speakers. On the other hand, the third speaker 7 is implemented as a low-pitched speaker. Accordingly, the third speaker 7 includes a larger cavity 16 compared to the first and second speakers 5 and 6. The two treble speakers 5, 6 are directly adjacent to each other according to FIG. 1 . In the speaker array, the bass speaker forms the front-most speaker (7). However, alternatively, it may be considered that the low-pitched speaker 7 is arranged between the two high-pitched speakers 5 and 6. Accordingly, the distance between the basic openings 11 and 12 of the first and second speakers 5 and 6 can be increased.

Figure 3 shows a longitudinal section through the carrier member 4 and the eyewear earpiece 3. From this, it is clear that the carrier element 4 comprises a plurality of hollow spaces 26, 27, 28 separated from each other by walls (see Figure 4). The hollow spaces 26, 27, 28 are respectively associated with one of the speakers 5, 6, 7. The loudspeakers 5 , 6 , 7 are provided with a corresponding hollow space 26 according to FIG. 3 so that a first hollow space region 29 at least partially forms a cavity 16 of the associated loudspeaker 7 . 27, 28). The corresponding loudspeaker 7 further separates the associated hollow space 28 so that a second hollow space region 30 is realized. The second hollow space region 30 forms a sound guide channel 10 of the corresponding loudspeaker 7 . For clarity, only one of the hollow spaces 26, 27, 28 has a corresponding reference number in Figure 3.

Figure 4 shows a cross section through the carrier element 4 in the area of the third loudspeaker 7. The speaker, as described above, is implemented as a low-pitched speaker. As can be seen by Figure 4, the carrier member 4 or the eyewear earpiece 3 according to this embodiment includes first and second housing portions 31 and 32. The two housing portions 31 and 32 extend over the entire height of the eyewear earpiece 3. As a result, the basic opening 13 and the auxiliary opening 19 are implemented between the two housing parts 31 and 32, respectively. The two housing parts 31, 32 are preferably detachably joined to each other, so that damaged components of the audio system 2 can be replaced.

According to this embodiment, the speaker 7 is completely embedded in the first housing portion 31. To this end, the first housing portion 31 includes a mounting recess 33 in which the edge area of the speaker 7 is securely maintained. Accordingly, the speaker 7 is arranged between the first and second hollow space regions 29, 30 of the hollow space 28. As a result, as described above, the first hollow space region 29 forms the cavity 16, and the second hollow space region 30 forms the sound guide channel 10 of the speaker 7. form

A sealing member 34 is additionally implemented in the hollow space 28. As a result, the first sound wave 35 emitted by the speaker 7 into the second hollow space region 30 can be prevented from penetrating into the first hollow space region 29. The second sound wave 36 emitted by the speaker 7 into the first hollow space region 29 will also be prevented from penetrating into the second hollow space region 30 by the sealing member 34. You can. As a result, the hollow space regions 29 , 30 are acoustically isolated and/or sealed from each other by the sealing member 34 .

According to Figure 4, the loudspeaker 7 has a stroke axis 37 in a direction in which the membrane of the loudspeaker 7 can be displaced, which is not shown in detail here. According to this embodiment, the speaker 7 is disposed on the eyewear earpiece 3 such that the stroke axis 37 extends in the transverse direction of the eyewear earpiece 3. As a result, the primary opening 13 and the auxiliary opening 19 are aligned at an angle of substantially 90° with respect to the stroke axis 37 of the loudspeaker 7 .

In particular, as is clear from Figure 4, the first sound wave 35 passes through the sound guide channel 10 or the second hollow space region 30 by correspondingly actuating the loudspeaker 7 to the basic opening 13. ) can be guided to. The first sound wave 35 exits the hollow space 28 of the carrier member 4 through the basic opening 13 and reaches the ear opening 22 (see Figure 1).

Due to the auxiliary opening 19, the audio system 2 is also designed so that the second sound wave 36 can be emitted into the surrounding area. Accordingly, the second sound wave 36 generated by the speaker 7 reaches the auxiliary opening 19 through the cavity 16 or the first hollow space region 29, and the sound wave 36 ) can exit the carrier member 4. In this case, the control unit 25 operates the speaker 7 so that the second sound wave 36 is offset in phase compared to the first sound wave 35, in particular by 180°. Accordingly, a part of the first sound wave (35) that is not emitted towards the ear opening (22) but rather is unintentionally emitted into the surrounding area is eliminated by the second sound wave (36) emitted into the surrounding area, As a result, the first sound wave 35 can be heard substantially exclusively in the area of the ear opening 22 .

The auxiliary opening 19 is preferably of substantially the same size as the associated primary opening 13. Optionally, the auxiliary opening 19 is implemented with a smaller size than the basic opening 13. The auxiliary opening 19 is preferably no more than 5%, 10%, 20%, 25% or 30% smaller than the primary opening 13.

The speakers 5 and 6, implemented as high-pitched speakers, can be implemented in the same way according to the present embodiment. However, alternatively, it is also possible that the speakers 5, 6, which are implemented as high-pitched speakers, do not contain any auxiliary openings 17, 18, but rather only the speaker 7, which is implemented as a low-pitched speaker. Additionally or alternatively, the control unit 25 may be implemented so that the two loudspeakers 5, 6, implemented as treble loudspeakers, can be operated at a phase offset relative to each other for sound beam forming. there is. The phase offset is determined by the control unit 25 as a function of the spacing distance between the two loudspeakers 5, 6, in particular between their two basic openings 11, 12.

Accordingly, auditory information (first sound wave 35) can advantageously be conveyed to the user by the above-described audio system 2 without said information being perceptible by people nearby. The non-contact implementation of the audio system 2, i.e. its placement away from the ear, and the associated high level of wearing comfort can achieve a very high level of customer acceptance.

The invention is not limited to the embodiments shown and described above. Although described and illustrated in different embodiments, variations within the scope of the claims are possible, as well as combinations of features.

1: eyewear 2: audio system
3: Eyewear earpiece 4: Carrier member
5: 1st speaker 6: 2nd speaker
7: Third speaker 8: First sound guide channel
9: 2nd sound guide channel 10: 3rd sound guide channel
11: first basic opening 12: second basic opening
13: third basic opening 14: first cavity
15: second cavity 16: third cavity
17: first auxiliary opening 18: second auxiliary opening
19: third auxiliary opening 20: lower surface
21: upper surface 22: ear opening
23: Curved outer surface 24: Lens
25: control unit 26: first hollow space
27: second hollow space 28: third hollow space
29: first hollow space region 30: second hollow space region
31: first housing part 32: second housing part
33: mounting recess 34: sealing member
35: first sound wave 36: second sound wave
37: Stroke axis

Claims (14)

An audio system (2) for placement in an area outside the ear, comprising:
integrated into or implemented as an eyewear earpiece (3) and having a carrier member (4) for attachment to the user's head, wherein the carrier member (4) is positioned as desired comprising at least one hollow space (26, 27, 28) with a primary opening (11, 12, 13) facing in the direction of the auricular opening (22) of the ear, and arranged in said hollow space (26, 27, 28) Has at least one speaker (5, 6, 7),
The cavity (14, 15, 16) of the hollow space is at least partially formed by the first hollow space region (29), and the first sound wave (35) is transmitted through the opening (11, 12, 13) by the hollow space. So that it can be discharged through the basic openings (11, 12, 13) in the direction of the ears spaced apart from,
The hollow space (26, 27, 28) includes auxiliary openings (17, 18, 19) arranged in the first hollow space region (29), the auxiliary openings being arranged as desired by the carrier member (4). When the second sound wave (36) is directed away from the ear towards the surrounding area so that it can be emitted by the speaker (5, 6, 7) through the auxiliary opening (17, 18, 19), The second sound wave (36) is offset in phase with the first sound wave (35) so that the volume of the sound wave emitted by the audio system (2) to the surrounding area is reduced.
In claim 1,
The basic openings 11, 12, 13 and the auxiliary openings 17, 18, 19 are arranged on two different sides 20, 21 of the carrier member 4 facing away from each other, the openings being An audio system characterized by being tilted at an angle of 90° or more and 180° or less to each other.
In claim 1,
The audio system (2) comprises a control unit (25) for sound beam forming, which control unit (25) is electrically connected to the loudspeakers (5, 6, 7) and integrated into the carrier element (4). An audio system characterized by being
In claim 3,
The control unit 25 controls the first sound wave 35 emitted by the at least one speaker 5, 6, 7 through the basic opening 11, 12, 13 to the ear opening 22. An audio system that can be concentrated in a region and is implemented so that the second sound wave (36) has a phase offset of 180° with respect to the first sound wave (35).
In claim 4,
The loudspeaker (5, 6, 7) comprises a sound guide channel (8, 9, 10) which guides to the basic opening (11, 12, 13) and is at least partially realized by a second hollow space region (30). An audio system characterized in that:
In claim 4,
The carrier member 4 includes two housing parts 31 and 32 that are coupled to each other and the hollow spaces 26, 27 and 28 are formed between them, and the speakers 5, 6 and 7 are connected to the two housing parts 31 and 32. An audio system, characterized in that it is securely held in a mounting recess (33) implemented in one of the housing parts.
In claim 6,
The two hollow space regions (29, 30) are separated from each other by the speakers (5, 6, 7) disposed between the regions (29, 30) and sealed from each other by a sealing member (34). Audio system with .
In claim 7,
Audio system, characterized in that the sealing member (34) is implemented as a frame and is pressed between one of the two housing parts (31, 32) and an end surface of the speaker facing away from the mounting recess (33). .
In claim 4,
The speakers (5, 6, 7) are MEMS speakers (5, 6, 7) implemented as low-pitched or high-pitched speakers and comprising a membrane displaceable along the stroke axis (37), and the basic opening (11, 12, 13) and/or the auxiliary openings (17, 18, 19) are aligned at an angle of 90° with respect to the stroke axis.
In claim 3,
The audio system (2) includes at least two high-pitched speakers (5, 6), the basic openings (11, 12) of the two high-pitched speakers are spaced apart from each other by 1 cm to 5 cm, and the control unit (25) ) is implemented so that the two high-pitched loudspeakers (5, 6) can be operated at a phase offset determined as a function of the separation distance for sound beam forming.
In claim 4,
The basic openings 11, 12, 13 of the loudspeaker 5, 6, 7 are positioned so that when the carrier member 4 is positioned as desired, the openings 11, 12, 13 extend from the ear opening 22. An audio system, characterized in that it is arranged on the curved outer surface (23) of the carrier member (4) so that it is spaced apart at equal intervals.
In claim 3,
Characterized in that the audio system (2) comprises a microphone and the control unit (25) is designed so that background noise picked up by the microphone can be suppressed by correspondingly activating the loudspeakers (5, 6, 7). audio system that does.
In claim 4,
The basic openings 11 , 12 , 13 of the speakers 5 , 6 , 7 are arranged in the area of the lower surface 20 of the eyewear earpiece 3 and are connected to the speakers 5 , 6 , 7 ) of the auxiliary openings (17, 18, 19) are arranged in the area of the upper surface (21) of the eyewear earpiece (3).
In the eyewear (1) that inputs and outputs visual and/or auditory information,
Equipped with an eyewear earpiece (3) and an audio system (2) designed according to at least one of claims 1 to 13 above for placement in an area outside the ear,
integrated into or implemented as an eyewear earpiece (3) and having a carrier member (4) for attachment to the user's head, wherein the carrier member (4) is positioned as desired comprising at least one hollow space (26, 27, 28) with a primary opening (11, 12, 13) facing in the direction of the auricular opening (22) of the ear, and arranged in said hollow space (26, 27, 28) Has at least one speaker (5, 6, 7),
The cavity (14, 15, 16) of the hollow space is at least partially formed by the first hollow space region (29), and the first sound wave (35) is transmitted through the opening (11, 12, 13) by the hollow space. So that it can be discharged through the basic openings (11, 12, 13) in the direction of the ears spaced apart from,
The hollow space (26, 27, 28) includes auxiliary openings (17, 18, 19) arranged in the first hollow space region (29), the auxiliary openings being arranged as desired by the carrier member (4). When the second sound wave (36) is directed away from the ear towards the surrounding area so that it can be emitted by the speaker (5, 6, 7) through the auxiliary opening (17, 18, 19), The eyewear, characterized in that the second sound wave (36) is offset in phase with the first sound wave (35) so that the volume of the sound wave emitted by the audio system (2) to the surrounding area is reduced.